blob: 93aa72754c70724abc52c8a605efa04d07c42460 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
From f117e4e1d4d4ba03cdf376392dc996e84c04ddb5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Fri, 17 Sep 2021 13:13:52 +0200
Subject: [PATCH 09/90] PCI: mvebu: Handle invalid size of read config request
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Function mvebu_pcie_hw_rd_conf() does not handle invalid size. So correctly
set read value to all-ones and return appropriate error return value
PCIBIOS_BAD_REGISTER_NUMBER like in mvebu_pcie_hw_wr_conf() function.
Signed-off-by: Pali Rohár <pali@kernel.org>
Cc: stable@vger.kernel.org
---
drivers/pci/controller/pci-mvebu.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/pci/controller/pci-mvebu.c b/drivers/pci/controller/pci-mvebu.c
index b0965067e4ce..5bf1889cfb38 100644
--- a/drivers/pci/controller/pci-mvebu.c
+++ b/drivers/pci/controller/pci-mvebu.c
@@ -273,6 +273,9 @@ static int mvebu_pcie_hw_rd_conf(struct mvebu_pcie_port *port,
case 4:
*val = readl_relaxed(conf_data);
break;
+ default:
+ *val = 0xffffffff;
+ return PCIBIOS_BAD_REGISTER_NUMBER;
}
return PCIBIOS_SUCCESSFUL;
--
2.34.1
|
